KP400 Scheduled power On only lasts for one hour

KP400 Scheduled power On only lasts for one hour

KP400 Scheduled power On only lasts for one hour
KP400 Scheduled power On only lasts for one hour
2025-06-29 13:42:37 - last edited 2025-07-03 09:49:45
Model: KP400  
Hardware Version: V3
Firmware Version: 1.0.4

Good morning.  

 

I recently purchased a KP400 smart plug, and have string lights plugged into plug 2.  I installed the Kasa app on my Samsung Android phone, and have also set up access to these plugs via my Alexa.  

 

The problem I am encountering, from the start is this:  I want to turn the lights on at 7PM, and turn them off at 11PM on the deck out back. 

 

To that end, I created 2 schedules in the Kasa App... 1) to "Turn On Power" by time, 7:00 PM, and 2) to "Turn Off Power" by time, 11:00 PM.  The lights WILL turn on at 7:00 PM, but an HOUR later (8:00 PM) they turn off.  I have no idea WHY this is happening. but it happens consistently.  I then turned off the schedules on the app, and set up 2 routines in Alexa, exactly the same. and of course the lights turned on at 7:00PM, but again turned OFF at 8:00PM.  

 

Can someone help to troubleshoot this ?  As a retired programmer analyst, this SOUNDS like a coding issue of some sort, but that's just how my mind sees it.

 

Thanks in advance for any help.

 

Ian

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#1
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2 Accepted Solutions
Re:KP400 Scheduled power On only lasts for one hour-Solution
2025-06-30 06:37:45 - last edited 2025-07-03 09:49:47

  @Isundby 

 

It's possible that the auto-off timer is on, or there's an automation that triggers the plug to turn off automatically. Refer to this instruction to double-check your device's settings. How to Set up Timer for Smart Plug in Kasa App

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Re:KP400 Scheduled power On only lasts for one hour-Solution
2025-06-30 13:31:35 - last edited 2025-07-03 09:49:45

  @Wayne-TP 

Thank you Wayne.  It took me awhile to find that page (under "Smart->Smart Actions"), but that was it ... I believe when I first started playing with the plug, I must have set that duration when I was testing the functionalities, and forgot about it.  

 

Appreciate the help !  

Ian

 

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Re:KP400 Scheduled power On only lasts for one hour-Solution
2025-06-30 06:37:45 - last edited 2025-07-03 09:49:47

  @Isundby 

 

It's possible that the auto-off timer is on, or there's an automation that triggers the plug to turn off automatically. Refer to this instruction to double-check your device's settings. How to Set up Timer for Smart Plug in Kasa App

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Re:KP400 Scheduled power On only lasts for one hour-Solution
2025-06-30 13:31:35 - last edited 2025-07-03 09:49:45

  @Wayne-TP 

Thank you Wayne.  It took me awhile to find that page (under "Smart->Smart Actions"), but that was it ... I believe when I first started playing with the plug, I must have set that duration when I was testing the functionalities, and forgot about it.  

 

Appreciate the help !  

Ian

 

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#3
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Re:KP400 Scheduled power On only lasts for one hour
2025-07-03 09:39:23

  @Isundby 

 

Oh right, yes, the KP400 does not support the auto-off timer feature (I confused it with the other model). However, this function can still be achieved through automation, as you have discovered.

 

Anyway, glad to know the concern has been solved now!

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Re:KP400 Scheduled power On only lasts for one hour
2025-07-14 17:48:20

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